Lock with a resettable combination

A lock with a resettable combination comprising:

• an extension means;
• a locating head and a locking head respectively coupled with two different ends of the extension means, said locating head having a tube extending therefrom, said locking head having a rod extending therefrom and receivably engaged with the tube;
• a spring mounted around the tube of the locating head;
• a set of selectors respectively and sequentially mounted around the tube of the locating head, each of said set of selectors indicating a series of symbols on an outer circumference and having a rotatable ring, a locating block, a drive block and a torsion spring combined for selection, said rotatable ring having a central hole defined therein and a plurality of valleys defined in a periphery defining the central hole, said locating block being received in the rotatable ring and having a collar flange extending therefrom, said collar flange defining a first gap at a top portion thereof and having a protrusion formed on a lower portion thereof to be received in a respective valley of the rotatable ring, said drive block having a central hole defined therein and a second gap defined in an upper portion of a periphery defining the central hole, said drive block further having a C-shaped buckle integrally extending therefrom, said C-shaped buckle defining a groove in a periphery thereof to receive a torsion spring;
• and
• a sequence reset means mounted around the tube of the locating head, said sequence reset means having an annular member and a toggle means pivotally engaged with the annular member for driving the set of selectors, said annular means defining a pair of opposed holes in a periphery thereof, said toggle means being configured as a semi-circular collar and having a pair of cam gears respectively formed on two distal ends defined therein, said pair of cam gears extending through the pair of opposed holes of the annular member to abut one of the selectors.